Pass data
to the view.

The controller prepares

Replace only the index() method of AboutController. The second view() argument is an associative array: every key becomes a name available in the view.

public function index(Request $request): Response
{
    return $this->view('about.php', [
        'projectName' => 'Reading List',
        'bookCount' => 3,
    ]);
}

The view displays without blindly trusting

src/views/about.php

<main>
    <h1><?= htmlspecialchars($projectName, ENT_QUOTES, 'UTF-8') ?></h1>
    <p>You track <?= (int) $bookCount ?> books.</p>
</main>

<?= ... ?> is a short form of echo. htmlspecialchars converts characters that could be interpreted as HTML. This protection matters whenever a value may come from a form, URL, or database. The (int) cast guarantees a number here.

Follow the value

The view does not fetch data itself. The controller gives it data explicitly, making the flow readable and testable.

BEGINNER QUESTIONS

Normal questions at this stage.